
    <form [formGroup]="form" novalidate>
      <nz-cascader
        [nzOptions]="nzOptions"
        (nzChange)="onChanges($event)"
        [formControlName]="'name'">
      </nz-cascader>
    </form>
    <br>
    <button nz-button (click)="reset()">Reset</button>
    <button nz-button (click)="submit()">Submit</button>
  